The Flownex Network Builder, introduced in the Flownex 2025 release, enables users to export complex piping networks directly from Autodesk Revit into Flownex, significantly reducing the time and effort required to recreate large systems. Through a flexible filtering and component mapping process, users can control exactly which Revit elements are transferred and how they are represented within the Flownex model. The tool also includes features for property transfer, naming convention management, and automatic repair of common network connectivity issues to improve model quality before export. Once configured, the Network Builder analyses the proposed actions, generates detailed reports, and highlights any issues requiring manual attention before building the network. By automating the export and network creation process, the feature can reduce setup time by up to 80% while minimizing errors and accelerating simulation readiness.